Roll-polisher



'F. s. KLUG AND 0. E. FREELAND.

- RQLL POLISHER.

APPLICATION FILED APR. 8, I919.

9 Patented 131113 1920.

. 3 SHEETS SHEET I.

. P I rs. 1.

WlTNESSEES.

1 NvENToRsJf F. s KLUG m n'c E. FREEIJIND.

ROLL POLISHE R. I APPLICATION FILED APR. 8, I919.

Patented Jan. 13, 1920.

- 3 SHEETS-SHEET 2- I NVEN'TORS.

r I M WITNESSES.

Z KAQMM AT'TQFINEY.

F. S. KLUG AND C. E. FREELAND.

. ROLL POLJSHER. APPLICATION min APR. 8. l9l9 Patented Jan. 13, 1920 s SHEETS-SHEETQ.

' lNV-ENT 5 5/ WUNESSES.

. "ATTR ation ofsaid rolls.

A still furtherobject of the invention is UNrrE FREDERICK s. KLU AND CHARLES E. rnnnnaivn, OF wnnnnme, was: vnaemm' ROLL-POLISHER;

, 'To all whom it may concern:

Be it known that we, FREDERICK S. KLUG and CHARLES E. F REELAND, citizens of the United States of America, and residents of Wheeling, county of Ohio, and State of West Virginia, have invented certain new and useful Improvements in Roll-Polishers, of which the following is a'specification.

This invention relates broadly to roll polishers, and more specifically to an apparatus for maintaining the surfaces of .the rolls of a rolling mill in smooth and polished condition.

The primary object of the invention is to provide a simple and reliable mechanism for continuously subjecting the rolls of sheet and tin plate mills to the action of abrading blocks whereby the normal true and even.

contour of the urfaces of the rolls ispreserved and whereby scale and foreign matter is prevented from accumulating on said surfaces.

A' furtherobject is to provide an apparatus of the character mentioned which is so located with respect to the rolls that its use in no wise, interferes with the normal operto provide a roll polisher embodying a polishing block or-stone and mechanism whereby said stone is actuated to' travel back and 1 forth from end to end of the roll and including positive and reliable means for automatically effecting reversal of the direc tion of travel of said stone.

.With these and other objects in view, the

invention resides in the features of construction, arrangement of'parts and conibinzu tions of elements which. will hereinafter be exemplified, reference being had to the accon'ipanaying drawings, in which Figure 1 is a front elevation of a set of rolls showing our invention apyflied thereto; Fig. 2 is an end elevation of the same;

Fig. 3 is an enlarged section on line 83,'

Fig. 1;

Fig. 4 is a section on line 4 4, Fig. 1; Fig. 5 is an enlarged detail view illus- :rating the brake structure; Fig. 6 is an enlarged sectional elevation on line 6-6, Fig. 1;

Fig. 7 is an enlarged top plan view of the stone holder with a stone mounted therein; Fig. 8 is a sectional elevation. showing the of" rolls.

operative connection betweenv the clutchshaft and the upper feed-screw; and

Fig. 9 is a detail view of the joint be-- I Specification of Letters Patent. -Pa,tgnted an, 13, 1920, Application filed April 8, 1919. Serial N0. 288,467. l

being mounted in housings 3 and 4, as ordinarily; Mounted upon .the outer face ofv one ofsaid housings, as the left housiDgB', 1s a suitable bracket 5 in which are formed bearings for two parallel shafts 6 and- .7,

the shaft 6 being a-shortconstantly' driven countershaft' having its inner end suitably journaled in a bearing (not shown) pro:

vided on the adjacent housing,. and the shaft 7 being. a clutch shaft which has-its inner end journaled'in a'bearing 8 provided therefor in or on said housing.

The countershaft 6 carries upon its'pro- I jecti'ng outer end a pulley wheel 9 connected by a belt 10 to a suitable source of'motive power, as to the coupling ,box 11 which connects the lower roll 3 to an adjacent set thereon between the bearing provided therefor on the bracket 5 and the adjacent side pinion 13 is disposed in mesh with an idler.

gear 15 whichis in turn disposed in driving relation to a gear 16 that is also loosely mounted on the clutch-shaft.

A clutch 17 having its opposite faces dens so Said countershaft also carries.

tated is splined on the shaft 7 between said gears 14 and 16'and is adapted for interengagement with the corresponding dentated facesof said gears, being shiftable from one operative position to the other for alternately connecting said gears and consequently, for effecting reversal of the direction of rotation of. said shaft-7.

Coupled tofhe inner end of said clutchshaft 7 is one nd of a feed-screw 18 which extends transversely between the housings 3 and 4 adj acent to the upper roll 1 and has its opposite end journaled in a suitable bearing (not shown) formed on or in the housing 4. A block holder 20 is mounted for travel upon said feed-screw, a threaded eye 21 be- I being held in place upon said seat by means of an overlying clamping member or plate 24;-

which is pivoted orhinged at one end upon an end of said holder 20 and which has a slot 25 formed in its opposite end for the reception of a threaded stud 26 carried by the corresponding end of said holder. As is obvious, said plate 24 maybe swung on its pivot to and from overlying relation to the block or stone 23, as when stones are being removed or inserted, and the plate is se cured in clamping-relation to the stone by tightening a thumb-nut 27 carried by said stud 26;

Suitably mounted on the back of the holder 20 adjacent to the upper edge thereof are anti-friction rollers 28 which, during travel of the holder, traverse the face of a horizontally disposed channel bar 29 that has its opposite ends mounted upon the upright inner end members 30 of oppositely disposed angular levers 30 whereby regulat able tension is exerted for pressing the [face of the block or stone 23 against the roll 1. Each of said levers 30 extends outward close to the inner face of the adjacenthousing and is. supported by an integral laterally disposed trunnion 31 removably mounted on a U-shaped seat 82 carried by said housing. A retractile coil spring 33 has its lower end attachedto the outer end of said lever 30 and its upper end adjustable with respect to a suitable support or bracket, as 34, formed on the adjacent housing. As s obvious, an adjustable yielding tension is.ex-.

erted by said springs 33 which act through the levers 30, the channel bar 29, the antifriction rollers 28 and holder 20 for regulating the pressure applied by the stone to the surface of the roll.

Operatively associated with the clutch 17 is an upright shifting yoke whrch has ts lower end pivotally mountedupon a suitahle fixed part of the structure, as upon'the lower inwardly directed arm of the bracket Pivot-ally connected. to said clutch-shifting yoke at a suitable distance above the pivotal mounting of the latter is one end of a longitudinally shiftable reverse rod through E which force is exerted foreifecting clutchshifting movement of said yoke, as will hereinafter be described. Said rod, which is composed of two sections 36 and 36 which are suitably coupled as shown in Fig. 9, is

disposed adjacent and parallel to the feed,- screw 18 and has. its opposite ends slidably supported in suitable bearings (not shown) provided therefor on the ho1 1s1ngs. coupling for the sections of said rod 1S adjacent to the inne face of the housing 3 and The i provides for ready removal of the section 36 when occasion requires. Fixed collars 37 are carried by the rod section 36 at suitable points adjacent tothe housings 3 and fl, respectively, and located inward with respect to each of said collars and separated therefrom by a compression-spring 38 is a loose collar or movable buffer plate 39. In operation, as the traveling block holder approaches one or the other limit of its movementon the screw 18, an arm 40 carried thereby engages the adjacent buffer plate 39 and carries the same therewith, compressing the spring 38 between it and the adjacent fixed collar 37. lVhcn compression of said spring has reached a certain limit a' sufficient force isexerted upon the reverse rod to overcome the braking resistance to longitudinal moven'ient of said rod offered by asuitable brake, whereupon said spring 5 acts to forcibly thrust said rod to its opposite limit of movement, swinging the yoke 35 on its pivot, whereby the clutchiis shifted from one operative position to the other for effecting reverse of the direction of rotation J0 of the feed-screw and, consequently, reversal' of the direction of travel of the block 4 holder, i

The brake hereinbefore referred to comprises a spring-pressed pin 41 located transverse to the rod section 36 and having a beveled or rounded point adapted to seat in either of two notches 42 provided therefor in said rod section; saidnotches being spaced relatively to receive said pin at the 10o.- opposite limits of movement of the reverse taining'the latter seateduntil such time sufiicient force is stored in the spring 38 through compression of the latter to effect a complete shlfting movement or thrust of 'the reverse rod and, consequently, of-the.

clutch 17, from one limit of movement to the other. Said spring 43 is disposed with in a suitable casing 50 which is mounted upon the lower arm of the bracket 5, and the pin 41 is disposed for free movement through the end of said casing.

A second blockholder 20 is mounted for travel upon a feed-screw 18 located adjacent. to the lower roll 2 and isadjusted with respect to said roll tl'irough the intermediacy 'ofmechanism, including springs 33, precisely similar to that employed in, connection with the holder 20. Said screw has an extension 7- carrying a fixed sprocket wheel 44 which is driven from a similar sprocket 45' carried by the clutch-shaft 7 through a sprocket chain 46 connecting said sprockets. As is obvious, reversal of the direction of travel of the feed-screw 18 is accomplished through said connecting means simultaneously with reversal of the screw 18. In

other words, the arrangement is such that the movements of the two block holders 20 and 20. are accomplished in unison.

As is best shown in Fi 7 each of the block holders may can a jacent to each of its ends a brush 4'? suitable still mate.

rial, aswire, which acts upon the feed screwdered enlargement 7 the shoulder of which is designed to interengage with a shoulder 48 formed on the bearing 8, whereby 1s prevented outwardly directed end thrust which I might otherwise result, in case ofaccident or breakageof rolls, in disarranging the driving mechanism.

A shield or guard-plate 49 is preferably mounted in overhanging relation to eac iced-screw whereby the dropping of bars or sheets.upon said screw or upon the stone holder is prevented;

A sheave 51 is disposed to exert regulatable yielding pressure on the belt 1.0 whereby the latter is kept sufficiently tight to main tain its power transmitting rclatign to the parts connect d thereby, said sheave being mounted upon an arm 55 carried by a- 1'0 tary shaft n ounted onthe housing 3 and having an arm :33 to which is connected one end of a retractile spring 54 having suit-- ablc means of tension adjustment. A hand lever 56 is preferably mounted upon the clutch yoke 35 at a suitable point, shown in Figs. 2 and 3, whereby said yoke may be shifted by hand, as when it is desired to shift the clutch 'to and from neutral position. I

What is cl'ai-med-is-- 1 l. A roll polishei comprising a feed screw, a polishing block mounted for travel on said screw, ,means including a shiftable clutch for drivmgsaid screw, a longitudinally shiftablc rod located parallel to said screw and operatively connected with said clutch, a bulicr including a ('OIHPI'BSSIOII spring arranged on said rod adjacent to each end of said screw and adapted to be engagged and to be 'compressed by said block in the direction dffcravel of said block as the latter approachesthe endof its traverse,

- and a brake for resisting shifting movement of said rod until suiiicient force is stored by compression in said buffer spring), to forcibly thrust said rod, when released by the brake,

from one limit of movement tothc other To! producmg'a complete shifting movement of the clutch and a resultant reversal of said screw.

means including a shiftable clutch for driving said screw, a longitudinally shiftable rod located parallel to said screw and disposed in shifting relation to said clutch, a pair of bufiers disposed in,sp'aced-relat1on on said rod, each of said buffers including a compression spring, an arm carried by said block holder. for engagement with one of said buffers adjacent to each end of the traverse of said holder, and means maintaining said rod stationary until the buffer spring has been sufficiently compressed in the direc tion of movement of said holder to store in the latter a force. which, upon release of said rod, acts to thrust the rod from one' limit of movement to the other in the direction of movement of said holder, whereby said clutch is completely'shifted for reversing the direction of rotation of-the screw.

3. A roll polisher comprising a polishing block, 'a holder for said block, mechanism whereby said holder is actuated to travel longitudinally of the roll, means actuated by said holder adjacent to each. of its limits of travel Jwhereby its direction of travel is.

reversed, anti-friction rollers carried by the outer face of said. holder, a pivoted member resting against said rollers and adapted to be traversed by the latter during travelof said holder, said member being wholly in-- dependent of said holder and means foradjusting the ressure exerted by said member upon sald holder through said rollers for regulating the pressure of said block upon the roll. i

l. In a roll polisher, a holder'having a threaded eye and provided with a shouldered scatter the reception of apolishing block,

and a clamping member mounted on said holder, said member having'one end pivoted to said holder and being adapted for movement to and from a position in over-l ing clampingrelation to a block mounte on said seat.

5. In a roll polisher, a holderv having a threaded eye and provided with a shouldered seat for thereception of a polishing block, means for clamping said block upon. said seat, anti-friction rollers carried on the back of said holder, a member'- resting against said {rollers and adapted to be traversed by the. latter during'travel of said holder, and means whereby the pressure of said member upon said holder through said rollers may be adjusted for regulating the pressure of the block upon the. roll.

I In testimony whereof we ailix our signatures in presence of two witnesses.

FREDERICK s. KLUG. CHARLES E. FREELAND. Witnesses: CHAS. W. STEGEN,

Hownnn BAGHMAN, 

